The FiiO KA2 is a compact DAC and headphone amplifier that instantly improves the sound quality and volume of your smartphone. Connect the KA2 between your headphones and smartphone and you'll hear your music with more detail and volume. The FiiO KA2 comes with a seven-centimeter USB-C cable that is compatible with many Android smartphones and tablets. A USB-C to USB-A adapter is included so the KA2 can also be used on Windows and Mac computers. A pair of matching headphones connects to the FiiO KA2's balanced 4.4mm. The two powerful CS43131 DAC chips convert the signal from digital to analog without loss. Audio files up to 384 kHz and 32 bit and DSD256 are supported. The KA2's aluminum enclosure features an RGB light indicator so you can see what sample rate the current track is playing at. Whether at home or on the go while listening to music, watching videos or gaming, the KA2 reliably improves the sound quality from your smartphone or computer.